TRIPHENYLPHOSPHINE DIBROMIDE Chemical Properties

Melting point:

235 °C (dec.) (lit.)

storage temp. 

Inert atmosphere,Room Temperature

form 

Crystalline Powder

color 

Light yellow to light pink

Water Solubility 

Soluble in water, dichloromethane, acetonitrile, phenyl cyanide, dimethyl formamide, ether, chloroform, alcohol, carbon tetrachloride, acetic acid and carbon disulfide. Sparingly soluble in phenyl chloride, triphenylphosphine and phenyl hydride. Insoluble in aqueous bromine.

Sensitive 

Moisture Sensitive

BRN 

917652

InChIKey

OCXGTPDKNBIOTF-UHFFFAOYSA-N

CAS DataBase Reference

1034-39-5(CAS DataBase Reference)

EPA Substance Registry System

Phosphorane, dibromotriphenyl- (1034-39-5)

Safety Information

Hazard Codes 

C

Risk Statements 

34

Safety Statements 

26-36/37/39-45

RIDADR 

UN 3261 8/PG 2

WGK Germany 

3

F 

3-10-21

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

HS Code 

29319019

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

TRIPHENYLPHOSPHINE DIBROMIDE Usage And Synthesis

Chemical Properties

light yellow to light pink crystalline powder

Uses

Triphenylphosphine dibromide is used as a reagent for conversion of aldoximes into nitriles. It acts as a reagent for cleavage of acetals. It reacts with amines to give iminophosphoranes. Further, it serves as a reagent in the preparation of alkyl and aryl bromides from alcohols and phenols without rearrangement.

Purification Methods

It recrystallises from MeCN/Et2O. Although it has been recrystallised from EtOH, this is not recommended as it converts alcohols to alkyl bromides. It deteriorates on keeping, and it is best to prepare it afresh. [Anderson & Freenor J Am Chem Soc 86 5037 1964, Horner et al. Justus Liebigs Ann Chem 626 26 1959, Beilstein 16 III 864.]

TRIPHENYLPHOSPHINE DIBROMIDE(1034-39-5)Related Product Information

• Chromium hexacarbonyl
• Tungsten hexacarbonyl
• Benzene
• Triphenylphosphine
• Phosphine
• Phenyl phosphine
• TRIPHENYLPHOSPHINE DIBROMIDE, (DIBROMOTRIPHENYLPHOSPHORANE)